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US 11,378,072 B2Granted
Air compressor
AssigneeMax Co., Ltd.
InventorsShinichi Okubo, Tsutomu Yoshida
Life of this patent
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Abstract
An air compressor includes: a motor; a compression mechanism that is driven by the motor and that is configured to generate compressed air; a tank that is configured to store the generated compressed air; a load acquisition part that is configured to acquire a load applied to the compression mechanism; and a control part that is configured to control a rotation of the motor. The control part is configured to perform control for changing a TN characteristic of the motor in response to the load of the compression mechanism acquired by the load acquisition part.
Claims10
An air compressor comprising:
- a motor;
- a compression mechanism that is driven by the motor and that is configured to generate compressed air;
- a tank that is configured to store the generated compressed air;
- a load acquisition part that is configured to acquire a load applied to the compression mechanism;
- and
- a control part that is configured to control a rotation of the motor,
- wherein the control part is configured to:
- perform control for changing a TN characteristic of the motor in response to the load of the compression mechanism acquired by the load acquisition part,
- change the TN characteristic of the motor by field weakening control to produce a changed TN characteristic of the motor,
- execute the control for changing the TN characteristic, periodically,
- execute a process of setting a target number of rotations of the motor, periodically, and
- increase, according to the changed TN characteristic of the motor by the field weakening control, the target number of rotations such that the motor is stabilized at a fixed number of rotations.
9 more elements
Dependencies are inferred from the claim text.